nRF54L15 BLE Current Consumption

RE: nRF54L15 BLE Current Consumption

ketiljo — Wed, 02 Jul 2025 09:34:01 GMT

If the PA isn't continuously on, you will measure less current. Setup a constant carrier in DTM for 100% duty cycle.

RE: nRF54L15 BLE Current Consumption

Webster Yang — Wed, 02 Jul 2025 02:50:04 GMT

I measure the DK supplies 1.8V to nRF54L15 and the current is around 13.7mA in DTM mode. This value is different from the calculation above. I just want to clarify whether the calculation idea is correct or not? I series the ampere meter in p6 pin header and I think I connect the correct way.

RE: nRF54L15 BLE Current Consumption

ketiljo — Tue, 01 Jul 2025 14:12:51 GMT

[quote user=""]1. Is the table measurement is from 3.0V input?[/quote]

The table is for 3.0 V.

[quote user=""]2. I find the condition in the datasheet is 3.0V but my system is 1.8V. Is the current still the same as the table or I need to transfer the current by system power consumption 3(V)x9.8(mA) / 1.8(V) = 16.3(mA) ? (take +8dBm for example)[/quote]

The power supply to the radio is a DCDC converter. The efficiency varies across supply voltage and it's typically less effective at lower input voltage. 16 mA at 8 dBm on 1.8 V should be close to what you can measure